Senior Member

Slow charging lowers the heat problem which u will get when you do quick charging. Also the charging process is a linear curve. Quick charging only tops the battery up to about 80% or so. Slow charging will slowly bring up the power level up to close to 100%.

And why I chose PowerEx was the high heat of the Sanyo's. Previously I had used Sanyo's and the heat was really high, both during charging as well as in use. It scared me off and after switching to Powerex, I never had such problems of a very hot flash or charger..

1) the higher the mAh, the more shots you can take. However, the current 2700mAh NiMH batteries are the normal ones and not the slow self-discharge one so if you leave the batteries inside the camera, the self-discharge rate will be much higher than those hybrid NiMH batteries.

2) current hybrid NiMH batteries in the market are Sanyo Eneloop, PowerEX Imedion and GP Recyko. These are all 2100 mAh rating. Their properties are quite similar and they priced according to how people rank their brand - Eneloop being the most expensive among the three and Recyko being the least expensive.

Senior Member

fast charger will generate more heat as it uses higher current to charge and thus is more harmful to the batteries. Prolong use will tend to shorten the useful life.

When people say normal charger, they usually refer to the slow charger/dumb charger that charge the batteries over a long period. e.g. 8-12 hours. Most of these cheap slow charger will charge batteries in pairs. It will stop charging completely when it sense one of the battery is fully charged. If you have a bad battery, the good one will not get fully charge since it stopped when the other battery is full.

I would recommend a charger that can charge individual battery instead of in pairs - i.e. it should have independent charging circuits.

Maha chargers from East Gear 42 Horne Road.
Get a good one & forget about those cheapos.
Check out the consumer corner section. there is a thread which some members had shared their experience on batteries & chargers.
(& stay away from Sanyo 2,500 - but Eneloop is fine)